A Brownmails capsule odistal onvoluted to collecting duct tubule
Afferent arteriole
to Prosumal convoluted
tubule
6
5
E Glomerulus
3
జాతర
Blood cells
and platelets
F
bange blood proteins G Efferent arteriole
KEY
Sodium and chloride ions
Water
Direction ol blood flow
Potassium and hydrogen ions
U Urea
Flow ol litrate
Glucose and amino acids
Phosphate ion
Movement of solutes
Henle's loop
con involved in the formation of urine in the kidney​

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.